baber/WOPTO huggingface dataset:
Patent GB-1331737-A (GB)
Title: Force-measuring apparatus
IPC: G01G3/16
Filed: 1972-01-31
Abstract: 1331737 Force measuring apparatus METTLER INSTRUMENTS AG 31 Jan 1972 [19 Aug 1971] 4492/72 Heading G4H Force measuring apparatus comprising one or more mechanical oscillators which generate a pulse frequency indicative of an applied force, the pulses being counted over a given period and used as a digital representation of the applied force wherein a frequency multiplier multiplies the frequency of oscillation and the counting period is variable. The apparatus as described is used for weighing; the mechanical oscillators are loaded measuring strings and employ a frequency standard which is either a quartz oscillator or another measuring string held under the same conditions as the first. The frequency (fs) of the loaded measuring string is multiplied (1) and fed through gate 2 to decode counter 3. Gate 3 is opened for a period (prefer- 0À1 or 1 sec. by signals from divider 4 fed by reference oscillator (fr). The counter output passes to store 8 and readout 9 and/or printer 10. Counting period selector switches 6, 7 are ganged and arranged so that when switch 6 changes the counting period from 1 to 0À1 sec., switch 6 switches the lowest register out of the counter and feeds pulses direct into the next. This reduces the measuring time and accuracy by a factor of 10 but does not affect the position of the decimal point in the counter. Matters are arranged so that the product of the fundimental frequency of the measuring string and the multiplication factor is an exact number of megalary, and the first figure (3 of 3 MHz as described) is not displayed by the counter. When a tore is to be subtracted from a weighing, the tore is first weighed and its value is stored at 11. The tore value is entered in the counter 3, the weighing is commenced and the counter 3 counts down to zero which is sensed by circuit 14 and then up again.
Patent GB-949842-A (GB)
Title: Fuel pumps for internal combustion engines
Inventor: KNIGHT BASIL EDWARD
IPC: F02M41/14
Filed: 1960-08-09
Abstract: 949,842. Fuel injection pumps. C.A.V. Ltd. Nov. 6, 1961 [Aug. 9, 1960], No. 4505/60. Heading F1A. A fuel injection pump 50 is fed through a manual or governor controlled throttle 63 by a supply pump 61 with a pass valve 62 and the back pressure at the pump inlet 60 is kept constant by a shuttle 66 loaded by fuel substantially at the desired back pressure. The pump 61 is fed by a lift pump 61a and the rear side of shuttle 66 is connected to the intake of pump 61. The injection pump 50 has camoperated pistons 54 carried by a rotor 51 with inlet passage 59 and a delivery passage 57 which delivers to circumferentially spaced ports 58 connected to fuel injectors. The pump 61 is arranged on the injection pump shaft and the valve 63 is situated in the pump body. In the drawing of the Provisional Specification the injection pump pistons 5 actuate a free piston 16 which delivers the feed through outlets 11 and the pump delivery is controlled by varying the supply through passages 13, 9, to the working chambers of the piston 16 and the pistons 5 by means of a manually controlled throttle 29. The supply pump has spring-controlled valves 22, 33, in a by-pass m, the valve 21 serving to apportion the feed supply between the by-pass and the delivery line to the throttle 29. The rear side of the shuttle 28 which maintains constant back pressure at the pump inlet 13 is connected to the pipe j between the by-pass valves 21, 23, to which the pipe 9 is also connected through a passage 29b in the throttle 29. At a predetermined speed the pressure in pipe j acting beneath throttle 29 raises the throttle to reduce the pump delivery and govern the engine speed.
Patent GB-869015-A (GB)
Title: Apparatus for numerical control of machine tools
IPC: G05B19/408
Filed: 1957-05-31
Abstract: 869,015. Copying-machines. GIDDINGS & LEWIS MACHINE TOOL CO. May 31, 1957 [June 5, 1956], No. 4517/59. Divided out of 869,012. Class 38 (6). The Specification repeats the description of the programmed control system for a milling- machine disclosed in Specification 869,013 and adds the following features:- (1) Manual control of axis movement.-The trains of incremental pulses from the director 125 may be replaced by pulses generated at 146 and applied by manually-controlled switches, Fig. 22A (not shown), to a selected axis channel of the phase-modulator 132 so that a control signal to move the machine-tool along the selected axis is produced for as long as the manual switch is actuated. A choice of 3 speeds of movement is provided. Further switches, Fig. 26 (not shown) ganged with the movement control switches override the programmed direction of movement controls. (2) Distance indicators.-Since the director 125 and magnetic tape recorder 98 are normally remote from the machine-tool 139, the director is provided with 5 meters, Fig. 39 (not shown), which record, to the nearest inch, the movement programmed along each of the 5 axes, and a fine indicator, Figs. 22C and 22D (not shown) which shows the fractions of an inch along any one selected axis. These indicators function on the outputs of the phase modulator frequency divider. Specification 869,014 also is referred to.
Patent GB-1219584-A (GB)
Title: Improvements in or relating to structures erected from cards or boards
Inventor: ENOCH JOHN EDWARD
IPC: A63H33/04
Filed: 1967-01-30
Abstract: 1,219,584. Dolls houses. J. E. ENOCH. 30 Jan., 1968 [30 Jan., 1967], No. 4545/67. Heading A6S. [Also in Division B8] Dolls houses and other model structures are made from a kit of parts of paper board material which fit together by tongue and slot and/or twin slot coupling connections and one piece plastics (e.g. PVC) reinforcing components for lining the slots, said component being present either as separate push on parts or already fitted to the paper board material. The push on components may comprise either a socket 9 integral with and projecting from a flange 10, the depth of the socket 9 being greater than the thickness of the paperboard or, for twin slot couplings, channel portions 30 opening outwardly on opposite directions to line the sides of the slot and a bridging piece 31 to line the bottom of the slot. The tongues may be strengthened with reinforcing cap 11 having shoulder portions 12 or the tongue may be impregnated with resin. The tongues may alternatively be separate pre formed members. The edges of the paperboard parts may be protected by U-shaped channelling which may incorporate the tongues and/or cappings and one or more hinges. A box for storing the unassembled kit is preferably provided with slots in order to provide a part e.g. the base, of the assembled structure.
Patent GB-416780-A (GB)
Title: Improvements in or relating to flooring grids
IPC: E04C2/42
Filed: 1933-02-15
Abstract: 416,780. Flooring-treads. BEYTS, L. S., 8, Breckfield Road North, Liverpool. Feb. 15, 1933, Nos. 4598 and 6984. [Class 20 (iv).] The peripheral edges C of a flooring grid A are made of a substantial taper or sloping configuration so that when the grids are placed in a bed G of concrete, bitumen, or the like, with their upper edges D in abutment, a tapered space is left below the joint to take a wedge-like filling E of concrete &c., which supports the grids. In the construction shown, the grids are of hexagonal configuration and have hexagonal openings B which are bounded by tapered bars J. The edges of the grids have half-hexagonal recesses and projections K, K<1>, and adjacent grids are disposed either with their projections in abutment or with the projections of one grid engaging in the recesses of the other. The grids are anchored to the concrete &c. by staples H suitably secured to the grids. In a modification, the grids are square in plan and have square openings, and the anchoring means consists of headed studs which are cast integral with the grids.
Patent GB-231985-A (GB)
Title: Improvements in reciprocating engines
IPC: F01B17/04
Filed: 1924-02-22
Abstract: 231,985. Templeton, F. H. Feb. 22, 1924. Compound engines. - An engine is worked by mixed saturated steam and superheated steam or compressed air or other fluid. In engines with opposed, differential pistons working in the same cylinder the mixing is effected in the space between the pistons during their outward strokes. Steam from the high-pressure annular sides of the pistons 5, 6 passes before the end of their strokes through a bye-pass 18 to the space between the pistons. Superheated steam or compressed air is injected through pipes 12, 15 after the dead centre is passed and is cut off by valve 13. Saturated steam is then injected through passages 11, 19 and is cut off at half stroke expanded, and finally exhausted through pipe 16 controlled by valve 17. During the outward movement of the pistons 5. 6 the high-pressure ends of the cylinder exhaust to the centre of the cylinder until the pasage 18 is closed, when the normal exhaust is opened through passage 14.
Patent GB-573765-A (GB)
Title: Improvements in or relating to magazines for automatic fire arms
IPC: F41A17/38
Filed: 1941-03-05
Abstract: 573,765. Cartridge magazines. COLT'S PATENT FIRE ARMS MANUFACTURING CO. March 5, 1941, No. 4725/43. Convention date, March 22, 1940. Divided out of 573,751. [Class 92 (ii)] Relates to cartridge magazines for attachment to the feed boxes of super-calibre automatic guns of the kind described in Specifications 226,197, 235,591 and 235,592, [all in Class 92 (ii)], and U.S.A. Specifications 1, 692,277 and 1,692,328. According to the present invention the magazine is adapted to accommodate an articulated-link type of feed strip by providing the end plates of the magazine with similar spiral or like guides for the noses and bases of the cartridges in the strip. In the form shown, the magazine is adapted to receive an articulated-link cartridge strip x as described in Specification 573,766 and is fastened to the left-hand side of the gun feed box y by fastenings 92 interchangeable with those used for attaching a straight loading tray when a rigid strip is employed. The magazine comprises front and rear plates 84, 85 connected by rods 86, the plates being similarly grooved in spiral or like form on the inside to guide the noses and bases of the cartridges. When the magazine is filled and out of use away from the gun it is carried by a handle 93, the cartridges being retained by detents 96 which are automatically released when the handle is turned down after attaching the magazine to the gun. The magazine is charged by attaching a guide plate to the exit end by fastenings similar to those on the gun. The empty strip passes into a shoot 99. Specification 573,751 also is referred to.
Patent GB-141159-A (GB)
Title: Improvements in or relating to platen rollers for type-writing machines
IPC: B41J11/053
Filed: 1919-02-25
Abstract: 141,159. Houston, C. M. M. Feb. 25, 1919. Paper supports.-A sound-deadening platen roller for typewriters consists of a hollow cylinder which is (1) insulated from the end plates by sound-deadening material, or (2) is exhausted. The platen roller shown consists of a cylindrical shell 1, preferably formed from an alloy of aluminium, which is mounted in an air-tight manner on the end plates 3, 3A by means of rings 2, 2A of rubber, fbre, wood pulp, &c. The end plate 3<A> is provided with an exhausting-pump, actuated by a push-rod 9, which also serves for returning the carriage; or the rod may be actuated during carriage-return by trip mechanism mounted on the top plate of the typewriter. The pump comprises a plunger 10 which is secured to the rod 9 and is mounted in a barrel 6 formed on a flange 7, a spring 11 being provided for returning the plunger. The plunger is fitted with a valve (not shown). The barrel is fitted with a ball valve 13<A> which is pressed against a seat 14 by an adjustable spring 15. The platen roller may be exhausted initially by means of a separate pump, the pump on the platen rollers being provided with a tapped hole for receiving a pipe connexion.
Patent GB-1179303-A (GB)
Title: Mechanism for Beheading Shrimps and like Crustaceans.
Inventor: TITMAN ROBERT STEPHEN
IPC: A22C29/02
Filed: 1967-01-31
Abstract: 1,179,303. Beheading shrimps. UNION INTERNATIONAL CO. Ltd. 6 March, 1968 [31 Jan., 1967], No. 4770/67. Heading A2U. A machine for beheading shrimps and like crustaceans comprises a shoot formed by a stationary plate 2, which carries rows of pins 5, and a plate 3, which is reciprocated horizontally in its own plane and carries rows of inclined baffles 6, the inclination of the baffles being in opposite directions in adjacent rows (Fig. 7). The shrimps &c. are fed into the upper end of the shoot by a hopper 1 and descend between the pins 5 and baffles 6 in each row, the baffles being reciprocated with a sufficient amplitude to cause the shrimps to be beheaded by the interaction between the baffles and adjacent rows of pins. The shrimps &c. leave the shoot by way of vertical baffles 8 and are then received, together with the trash, in an inclined drum (20, Fig. 2, not shown) containing coaxial rotating brushes which complete the decapitation of any incompletely beheaded shrimps prior to delivering the mixture of shrimp bodies and heads to a hopper from which they may be conducted by elevator to an inspection belt where the shrimp bodies are raked off manually for washing and peeling. The heads and other trash pass off the end of the inspection belt to a collection tub, so that they can be processed if desired to yield meal for use as an animal feed. In order to minimise damage to the shrimp bodies during the beheading operation, plastic sleeves may be fitted on the pins 5. The plate 3 is guided for horizontal reciprocating movement by rollers 15, 16 engaging rails 13 provided on the plate 3, and is driven by a connecting rod 17 from a crank carried by a driving shaft 27 which also drives the brushes via a pulley 29.
Patent GB-705600-A (GB)
Title: Improvements in and relating to work-holding vices
IPC: B25B1/16
Filed: 1951-02-28
Abstract: 705,600. Vices ; work benches. CLARKE, T. A. Feb. 27, 1952 [Feb. 28, 1951 ; May 9, 1951], Nos. 4830/51 and 10876/51. Class 61 In a treadle operated vice the movable jaw 11 is advanced towards the adjustably fixed jaw 10 by means of an intermediate J- or L- shaped lever 17 having a shorter arm adapted to thrust against the movable jaw and a longer arm connected through a pivoted link 21 to the foot-operated lever 22 the movable jaw being automatically returned by a compression spring provided between the jaws. The base 12 of the vice is mounted on a portable stand which may comprise an oblong box to serve for transport of the vice and a set of tools. The lever 17 is pivoted to the base at 18, the free end of the shorter arm 16 carrying a roller 14 accommodated in a recess in the underside of the movable jaw 11. The foot lever 22 is pivoted to the side of the box and has at its free end a pedal 24 pressure on which causes the link 21 to be drawn down and the roller 14 to bear against the jaw 11. The pedal 24 is retained in operative position by a spring-pressed pawl 31 mounted on thelever 22 and adapted to ride over a ratchet toothed quadrant 32 mounted on the side of the box, a releasing trigger 33 being provided. Additional pressure for fine adjustment is imparted to the longer arm of the lever 17 by a screw-threaded rod 34 mounted in the base of the vice. Stops 26 limit the closing movement of the jaws. The jaw 10 is held in adjusted position by bolts 27 which pass upwardly through slots in the base and are secured by nuts. In a modification the jaw 10 is adjusted by a spring plunger carrying a toothed block adapted for engagement with a toothed bar on the under side of the base. In another modification, Fig. 3, the jaw 10 has hooked flanges engaging beneath the edges of the base and is held in adjusted position by a wedge 47 slidable on the base 12 and pressed forwardly by a spring 50. A number of balls or rollers carried in a recess 48 in the wedge engage a hardened steel plate secured to the jaw. The clamping pressure is released by a spring plunger 51 having a tapered end which when depressed engages an inclined wall 53 at the back of the wedge. A compression spring 42 held between the bottom of the jaw 11 and a cup 43 secured to the base, returns the jaw 11.
Patent GB-460815-A (GB)
Title: An improved multi-cylinder internal combustion engine
IPC: F02B75/24
Filed: 1936-02-18
Abstract: 460,815. Multi - cylinder engines symmetrical about a transverse plane. CROSSLEY - PREMIER ENCINES, Ltd., and YEATES, A. C. Feb. 18, 1936, No. 4886. [Class 7 (ii)] A multi-cylinder engine comprises two similar units disposed on opposite sides of a flywheel a, one being a mirror image of the other. Each unit consists of three pairs of axially aligned cylinders with pistons connected to crank-pins at 120‹ to each other,
Patent GB-333521-A (GB)
Title: A system and apparatus for the transmission and reception of pictures or other representations
IPC: H04N1/04
Filed: 1929-02-13
Abstract: 333,521. Fulton, O. Feb. 13, 1939. Copying-telegraphs. - A copying-telegraph transmitter comprises a rotating drum 10, which carries a plurality of separate pictures or other representations 11 each occupying a small lengthwise section of the drum, and exploring-means 14 for co-operating with any one of the representations as desired. The exploring device has an extension 17 normally engaging a lead screw 13 and is mounted on a carrier 15, which is biased towards the right of the drum by a spring- tensioned cable 18. Operation of a key 21 causes a pivoted lever 22 to disengage the extension 17 from the lead screw, and brings a stop 20 into the path of the carrier to arrest it opposite the required section of the drum.
Patent GB-712526-A (GB)
Title: Improvements in and relating to echo ranging apparatus
Inventor: HALLIDAY WILLIAM
IPC: G01S1/72
Filed: 1951-02-28
Abstract: 712,526. Magneto-strictive transducers. KELVIN & HUGHES, Ltd. Feb. 28, 1952 [Feb. 28, 1951], No. 4923/51. Class 40 (4) [Also in Group XXXVIII] In a pulse echo system for locating objects under water comprising a rotatable directional electro-acoustic transducer, the echo signals being heterodyned to give an audio beat frequency indicative of relative movement of the object, the transducer comprises two selectively-operative oppositely-directed units resonant at different frequencies, e.g. 26 Kc/s and 14 Kc/s, for short and long range operation respectively; the pulse width and recurrence frequency may also be selected in accordance with range and means are described for varying the width and/or direction of the transducer directivity pattern in the vertical plane. Magneto-strictive transducer elements are described but piezo-electric elements may be employed. As shown the 14 Kc/s unit comprises a vertical array of seven elements 10-16 each comprising a horizontal stack of dumb-bell shaped vertical nickel laminations, Fig. 1 (not shown), each having a longitudinal slot 26 and two energizing windings 28, 29, the laminations being clamped to a frame 17 by clamps 30 near the central nodal region. The elements are. selectively energized in the following groups 10-16, 10-12 and 10-11 to produce vertical beam widths of 15 degrees, 30 degrees and 45 degrees, respectively, Fig. 6 (not shown). The 26 Kc/s unit comprises a similar array of eight elements 18-25 selectively energized in groups 20-25, 20-22. and 18-19, the top element 18 being outwardly displaced so that the 45 degree beam is directed downwards at an angle of 22¢ degrees. The inwardly directed faces of the transducer elements are separated by a sheet of rubber 36 between thin brass plates 37, 38 to prevent radiation therefrom and the leads from the energizing windings are taken to a junction box in a water-tight compartment, Fig. 1 and 2 (not shown), mounted on top of frame 17 and thence to slip rings mounted on a vertical pillar, Fig. 5 (not shown), about which the assembly is rotatable.' The whole assembly may be mounted in a dome as described in Specification 611,318, [Group XXXVIII].
Patent GB-259817-A (GB)
Title: Improved means for operating electric switches
IPC: H01H17/00
Filed: 1926-02-20
Abstract: 259,817. Logan, C., and Harris, G. H. Feb. 20, 1926. Flexible-pull actuation of tumbler switches. A bracket, adapted to be detachably secured to the switch, carries an element which engages the knob of the tumbler and which is itself actuated from a distance by a cord or the like. The bracket may comprise a band a encircling the base of the switch and clamped in place by a nut f, and the element may take the form of a drum k, Fig. 2, having a slot in it engaging the tumbler knob p. The drum k has the usual mechanism of a spring blind associated with it, so that a pull on the chain h wrapped round the drum will rotate the drum and move the switch " on," and a subsequent short sharp pull on the chain will release the drum and allow the spring mechanism to move it back. In a modification, Fig. 3, a pull on the cord causes levers s to approach each other and actuate the tumbler knob p, and in another modification, Fig. 4, the knob p is actuated by a slide v driven by a pinion z rotated by a cord j. Fig. 6 shows the knob p actuated by a slide v moved to-and-fro by Bowden wire mechanism.
Patent GB-229706-A (GB)
Title: Improvements in electro-acoustic devices
IPC: H04R1/24
Filed: 1925-02-23
Abstract: 229,706. Marconi's Wireless Telegraph Co., Ltd., (Minton, J. P., and Ringel, A. S.). Feb. 23, 1925. Thermionic amplifiers.-In a loud speaker comprising tw( units responsive respectively to high and low tones, the windings 1, 2 of the low anc high frequency units are . con nected through the low-pass and high-pass filters 5, 6 to the output circuit of a valve, and the windings have impedances substantially equal to the impedances of the valve at low and high frequencies respectively. Specification 215,104 is referred to.